Same film, different profiles - How come?

[jolsen]

The NegaFix profiles for Kodak Royal Gold 400 and Kodak Supra 400 are different. The difference is not big, but you can see it on the curves and in the scan. However, the Kodak Film Terms for these 2 films are identical, and it is commonly know that the films are identical. How come there are 2 different NegaFix profiles?

[LSI_Muenier]

Dear jolsen,

we have a calibration process for every film type, which seemed to see a difference between the two in their actual behaviour.

Best regards
Martin